Why do my Printed Thumbnails Have a Black Background?

This is caused by the print driver image adjustment settings. Every printer is different so you may have to look around a bit in your specific driver settings. You will be looking for a setting that controls the Image Adjustment. Once you locate the setting you will want to make sure it is set to (Application) and not to (System). This should correct the issue.

* NOTE: If you are unable to locate the Image Adjustment settings you may need to update your print driver.